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385.75 329.23 56.52 17.17 Other income 1.43 1.13 0.30 26.77 Cost of service 300.99 241.86 59.13 24.45 Expenses of sales 9.81 9.87 (0.06) (0.58) Expenses of management 49.30 43.92 5.38 12.24 Expenses of

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revenue under Concession Agreements 5% Cost of Jan-Jun 2019 = 1,311.59 million Revenue of Jan-Jun 2019 = 2,360.75 million EASTERN WATER RESOURCES DEVELOPMENT AND MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT

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Agreements 3% Cost of Jan - Jun 2020 = 1,251.02 million Baht Revenue Of Jan - Jun 2020 = 2,157.63 million Baht EASTERN WATER RESOURCES DEVELOPMENT AND MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT DISCUSSION

. Huaykwang, Bangkok  10310  F + 66 (2) 6452828,  + 66 (2) 6452829  VAT ID  0107538000151     Thailand W www.wiik‐hoeglund.com    -Translation- LWH/ACC 18/05/LT049 May 11, 2018 Subject: Management discussion